Sheet-metal door.



0. M. OTTE.

SHEET METAL DOOR.

APPLICATION FILED SEPT- 1|, 1913.

Patented May 22, 1917.

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' UNITED s AtrEs PATENT OFFICE.

oriio M. crew, or JAMESTOWN, new YORK.

a; SHEET-METAL noon.

T0 allwhom it may concern:

Be it known that I, O'rrro M. OTTE, a citizen of the United States, residing at the city of Jamestown, in'the county of Chautauqua and State of New York, have invented, certain new and 'usefullmprovements in Sheet-Metal Doors, of which the following, taken in connection with the ac companying drawings, is a specification.

The invention relates to hollow sheet metal doors, and'the object of the improve: ment is to provide a simply constructed, strong and durable. doorhaving molding decoration for the panels and stiles and crossrails, which parts are strongly welded to and are braced by the panel piece; the corner construction between the tubular crossrails and stiles being strongly braced so that whenthe panel sheets are welded to the outer frame of crossrails and stiles the entire door is rendered, extremely rigidand durable and presents a fine appearance at low cost; and the invention'consists in the novel features and "combinations hereinafter set forth and claimed.

In the drawings,Figure 1 is a front elevation of the outer side of a door'for a closet cabinet or other inelosure-where a door having decoration on onejside and not having decoration on the is a sectional-view at line XX in Fig. 1 of a door decorated on one side. Fig. 3 is a sectional view of a modification of the hollow stile or crossrailand the edge of the panel sheet showing decorativemolding on both sides of the door, one side showing the sunken panel effect and the other. sideshowing the'flush panel effect. Fig. 4: is an elevation of a corner portion of the door'showing the manner of corner construction with the interior corner brace 'withinthe hollow ends of the mitered crossrail and stile'shown.

in dotted outline; and Fig 5 a perspective ,7 vlew of said interior corner brace; and Fig.

6 is a sectional view at line Y-Y in Fig. 4

showing the close fit of the interior corner brace and how it supports the opposite sides of the hollow sheet metal crossrail and stile ends. Fig. 7 is a perspective sectional View of a portion of the panel and the decorative molding shaped so as to be spot welded thereto. l i v j Like characters of reference refer to corresponding parts in the several views.

Specification of Letters 15am.

other is desired. Fig. 2-

The numeral 10 designates the stile; the

, I .Patented May 22,1917. ApplicationfiledSeptember11 1916; SerialNo. 119,338. I w

The stiles l0 and crossrails 11 are formed in the hollow tubular shape, preferably rectangular, from strips of sheet metalby suitable dies, the lengthwise edges 13 being extended inward. from the tubular portion of the crossrail or stile in a fiangein which the two edges are placed evenly abutting upon one anotherand preferably inline with the inner side ofthe door and tubular portion. 1 The stiles-1O and crossrails 11 are joined atthe corners by the mitered joint 14. In 'order to hold the ends'of the stiles and cross railsin' this mitered relation, a slotted tubular internal brace-15 is provided in which the two wings 16 of the V-shaped corner brace 15 extend oneinto each end of the hollow stile and crossrail abutting at the line of the miter 1 L,v which miter line 14 is also shown in Fig. 5 in dotted line on the corner brace 15. Each wing 16 of the corner brace'l5 fits closely within its tubular end thereby supporting the side walls of the tubular ends-a spaced distance apart and at thesame time holding said tubular ends in the mitered relation. i

The panel 12 is shaped to fit closely with- Y in the frame formed by the tubular stiles 10 and crossrails 11 so that the entire outer edge around the panel 12 may be spotweld ed through the abutting flanged edges 13 of the stile 10 and crossrail 11 thereby holding the mitered braced joints of the stiles and crossrails firmly in position attaching them to one another with close easily enameled, or otherwise finished joints, and rigidly holding all the parts in place.

When so welded the internal brace 15 fitting closely within the tubular corners, as shown in cross section in Fig. 6, braces the corner on all sides extending squarely across the mitered joint on one side thereby firmly supporting the miteredjoint without need of welding or soldering attachment to the ends of the stiles and cross-rails. The joint between the panel and-the'fiange 13 is spot welded and takes a finish and makes a clean fine joint so that the inner, edge of the stile and crossrailmay be shaped in amolding When a greater decorative. effect is desired a molding 18 is shaped with a portion 19 contiguous to the panel 12 when placed thereon so that the molding may be spot Welded lengthwise along the portion 19, as shown in Fig. 7, thereby firmly attaching the molding 18 to the panel 12 either in position against the stile or crossrail or where a decorative panel effect is desired in thecentral portion of the panel 12, a molding 20 is providedwhich has the contiguous portion 19 to the panel 12 so that it may be spot welded along said contiguous portion 19 of the molding 20 thereby firmly attaching the molding 20 to the panel, as shown in Figs. 1 and 2. V

In order to decorate both sides of the door where bot-h sides are exposed, this simple form of sheet metal door construction may be used by providing a moldin 21= which has the bend 191 which fits contiguously against the side of the panel 12 opposite the po1'tion19 in the molding 18, and the three thicknesses of sheet metal plate may he spot welded together thereby covering the joint on both sides of the door in a permanent and durable manner. The molding 21 gives a flush panel effect on one side of the door, while the molding 18 gives a sunken panel effect on the other, thereby giving a pleasing appearanceto both sides of the door so that it can be used in a great many places where such a door constructed at low cost yet of strong fireproof construction is desired.

It is apparent that the panel 12 can be cut from the flat sheet as it comes from the rolls and be used without additional manipulation or preparation. The frame of tubular stiles and crossrails as Well as the molding can be drawn through suitable dies from the fiat strip and cut to length for spot welding attachment, and the orna1nentatlon is accomplished without additional work on panel, frame or, molding, the parts being so shaped that the attachment is made without clip or rivet nor by either of the edges of the molding. The molding usually has three points of contact, the central lengthwise welding curve and both edges. Neither of the edges-are used for attaching purposes so that the nieans of attachment is invisible and there is no cleaning or preparation of the edges necessary for the finish or enamel.

I claim as new 1. In a sheet metal structure, molding having inturned edge portions engaged with the plate leaving space between the body of the molding and the plate, said molding having a longitudinal part in its body depressed to extend inwardly to engage the plate at points between said inturned edges of the molding, and means to secure said inwardly extended part of the molding to the plate.

2. In a sheet metal structure, a plate, molding having inturned edge portions engaged with the plate leaving space between the body of the molding and the plate, said molding having a longitudinal part in its body depressed to extend inwardly to engage the plate at points between said inturned edges of tl molding. and said inwardly extending depressed part of the molding being welded in spots to the plate at spaced intervals. throughout the length of the depressed part.

3. In a sheet metal structure, a tubular rail having inturned abutting flanged edges, a; plate engaged with one of the flanges, molding having inturned edges engaged with the other flange and with the adjacent face of the plate, andsecond molding engaged with the opposite face of the plate, each molding having a lengthwise depressed part which engages the opposite faces of the plate at points opposite to each other and at points between the molding edges, and means to secure said lengthwise parts simultaneously to the plate.

a plate,

4. In a sheet metal structure, a plate, and

oppositely disposed moldings on the plate, said moldings having inturned edges which seat on the plate and having depressed lengthwise parts which contact with the plate on theopposite side faces of the latter, and means to secure said depressed parts simultaneously to the plate.

In testimony whereof I have aflixed my signature in the presence of two witnesses.

OTHO M. OTTE. Witnesses H. A. Sannnuuo, D. L. CARLSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G. 

